Ransburg DynaFlow User Manual - Manual (Page 49)

LN-9400-00.9
RIO Set Point
The Total Flow Rate set point for a GUN may
also be input via Remote I/O (RIO). No scaling is
required, since the Total Flow Rate value is sent
in cc's/minute. RIO control is initiated when the
value sent is non-zero, regardless if an Analog
Input Set Point greater than 0.25 volts is presented
to the Master CHANNEL.
Analog Input Set Point
The Total Flow Rate set point for a GUN may be
input via an external analog signal (0-10 VDC or
4-20 ma) presented to the Master CHANNEL via
the Channel Module. The Maximum Flow Rate
and Minimum Flow Rate for the JOB determine
the scaling applied to this analog input. Analog
control is initiated when the input signal is greater
than 0.25 volts and the RIO Set Point is zero.
Note: When configured for current loop input,
the minimum 0.25 volts is achieved since 4 ma
produces 2.00 volts at the input due to the 500
ohm shunt resistor used in current loop mode.
Load Mode
LOAD MODE is similar to RUN MODE. However,
in LOAD MODE, up to 10 faults are permitted be-
fore the gun will leave LOAD MODE and enter the
FAULT MODE. All eleven (11) faults will appear
in the Error Log screen. The GUN will automati-
cally leave LOAD MODE and return to the READY
MODE after a volume greater than or equal to
the Mixed Volume has flowed since the last fault.
Minimum
Flow Rate
CC's/Min
Maximum
Flow Rate
CC's/Min
0
100
100
300
Minimum
Voltage or
Current
0 volts or 4 ma
0 volts or 4 ma
10 volts or 20 ma
10 volts or 20 ma
Maximum
Voltage or
Current
CC's/Volt
10.00
20.00
6.25
12.50
CC's/Ma
ANALOG CONTROL SETTINGS
To Place A GUN In LOAD MODE:
1. The external GUN enable input must be sup-
plied to the Master CHANNEL. No system or GUN
faults can be active and the GUN configuration
and JOB tables should be properly set.
2. A signal must be supplied to the Master CHAN-
NEL LOAD input or a LOAD command issued from
the Operator Interface Panel or the host controller.
3. Flow will begin when the Trigger signal is sup-
plied.
To Exit LOAD MODE:
1. Simply remove the LOAD input and apply the
HALT input or issue a command from the Opera-
tor Interface Panel.
MANUAL HAND GUN
APPLICATIONS
The DynaFlow controller can provide closed loop
regulation for manual hand GUN application of
two-component materials. When used with hand
spray GUNs, the painter regulates the total fluid
flow with the spray GUN or an inline fluid regulator.
Regulation of two-component materials is based
on pre-set ratios located in the JOB tables.
When the GUN is placed in RUN MODE, the
master channel (resin) goes full open, or to the
setting specified for that channel as MVR HIGH,
and stays at that value. The slave channel goes
to the pressure setting specified for that channel
by MVR LOW. The controller determines the flow
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DynaFlow TM User Manual - Operation